Noun

1. A pointed instrument of the dagger kind fitted on the muzzle of a musket or rifle, so as to give the soldier increased means of offence and defence. Originally, the bayonet was made with a handle, which required to be fitted into the bore of the musket after the soldier had fired.
   • 1786, Francis Grose, A Treatise on Ancient Armour and Weapons, page xvi:

     Fig. 3. Its bayonet, to be fixed by sticking the handle into the muzzle of the musquet.

2. (Machinery) A pin which plays in and out of holes made to receive it, and which thus serves to engage or disengage parts of the machinery.

Verb

1. To stab with a bayonet.
2. To compel or drive by the bayonet.

   To bayonet us into submission. Burke.

Usage notes